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Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

Q] Choose one option for each and explain how it is correct1) Why is copper used to prepare calorimeter?a) It does not rustb) It is cheap and easily availablec) Thermal equilibrium is quickly produced with the liquid inside it.d) Heat given out by copper is very less.

2) A body is thrown vertically upward from the surface of the ground with the velocity of 9.8 m/s. What maximum height it will reach?a) 9.8 m b) 4.9 m c) 19.6 m d) 1 m

3) What is the nature of the image obtained by the contact lens?a) Virtual, erect and smaller than object b) Virtual, erect and of the same sizec) Virtual, erect and magnified d) Real, erected and diminished

4) When a body is moving with constant velocity the force acting on it is zero. Who proposed this theory?a) Aristotle b) Newton c) Copernicus d) Galileo

5) Which of the following is the charge carried by an electron?a) 1.6 x C b) 1.6 x Cc) 16 x C d) 16 x C